Odontogenesis — NDEB AFK MCQ

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ModerateBiomedical SciencesOdontogenesisNDEB AFK

During the bell stage of tooth development, which cells differentiate into odontoblasts?

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Correct answer: C — Ectomesenchymal cells of the dental papilla

Odontoblasts differentiate from ectomesenchymal cells at the periphery of the dental papilla, adjacent to the inner enamel epithelium (IEE). Reciprocal signalling between IEE and dental papilla induces this differentiation. IEE cells become ameloblasts. Dental follicle cells give rise to periodontium.

Reference: Nanci – Ten Cate's Oral Histology, 9th ed., 2017